*On P7S-441, SG-1 is under attack by Jaffa. Tyler has been injured, and O'Neill has gone back for him. Now the two are pinned down, and Carter, Daniel and Teal'c are ordered to return through the gate to bring reinforcements. Arriving at the SGC, they urgently request a rescue mission for O'Neill and Tyler, until Hammond insists that no Lieutenant Tyler exists. No one can explain why only SG-1 seems to be aware of Lieutenant Tyler, but Carter, Daniel, and Teal'c are confined to the infirmary for evaluation, while O'Neill remains trapped on the planet with a teammate who may, or may not exist.
*Source: Back of card